| name | youtube |
| description | Work with YouTube content end to end — fetch transcripts and turn them into summaries, blog posts, social content, quotes, or show notes; create high-CTR thumbnails (with the user's face from an upload), clone the style of top-ranking thumbnails; and produce SEO-optimised titles + descriptions. Use when the user pastes a YouTube URL, wants to repurpose video content, research competitor videos, make or refresh a thumbnail, or package a video for upload. |
| use_cases | ["Get the transcript of a YouTube video","Summarize a YouTube video or extract key points without watching","Turn a video into a blog post, LinkedIn post, or show notes","Pull verbatim quotes with timestamps","Generate a YouTube thumbnail from a video idea, transcript, or YouTube URL","Research the top-performing thumbnails for a search term and clone their style","Add the user's face (uploaded as an image) to a thumbnail","Produce an SEO-optimised title set and description for an upcoming video"] |
| triggers | ["youtube","youtube transcript","youtube video","video summary","repurpose video","show notes","thumbnail","youtube thumbnail","thumbnail clone","SEO titles","video description","youtube title"] |
| requires_toolkits | ["youtube_toolkit"] |
| suggested_toolkits | ["image_gen","sandbox","file_manager"] |
| icon | youtube |
| short_description | Fetch transcripts, repurpose video content, and create thumbnails for YouTube. |
YouTube
Fetch the full transcript of any YouTube video and turn it into whatever the user needs — summaries, blog posts, social content, quotes, show notes, or raw text. Then package videos for upload: high-CTR thumbnails, SEO titles, and descriptions.
Routing
| User intent | Where to go |
|---|
| Transcript, summary, repurposing, quotes, chapters | This guide (below) |
| Thumbnails, style cloning, SEO titles/descriptions | references/thumbnails.md |
Requirements
If youtube_video_transcripts_fetch is not in the tool list, stop and tell the user to enable the YouTube toolkit in Hyper.
Two tools — pick the right one
| Tool | When to use | Returns |
|---|
youtube_video_transcripts_fetch | You need the raw transcript text or timestamped segments. Fast, reliable, always get this first. | Full text string + segments with start/duration timestamps |
youtube_videos_read | You need AI-powered extraction from the video — summaries, Q&A, topic segmentation, translation, visual descriptions. | Free-form answer to your instruction |
Default: start with youtube_video_transcripts_fetch. Use youtube_videos_read when you need something the raw text can't give you (e.g. visual descriptions, translation, or a structured extraction from a very long video).
Critical rules
youtube_video_transcripts_fetch takes 15–30 seconds. It spins up an isolated sandbox. Tell the user it's running and to expect a short wait — don't make them think it's stuck.
- Both video IDs and full URLs are accepted.
"NZLAdOL9fP8" and "https://www.youtube.com/watch?v=NZLAdOL9fP8" both work.
- Don't fabricate transcript content. Always fetch before summarizing. Never rely on training knowledge about what a specific video says.
- Very long videos (>2 hours):
youtube_video_transcripts_fetch handles these fine. Only use youtube_videos_read on long videos if you specifically need AI-powered extraction — it can hit token limits on very long content.
- No transcript available: Some videos have transcripts disabled. If
youtube_video_transcripts_fetch fails, try youtube_videos_read as a fallback — it uses a different extraction method.
Fetching the transcript
youtube_video_transcripts_fetch(
video_id_or_url="https://www.youtube.com/watch?v=NZLAdOL9fP8",
language="en"
)
Response structure:
{
"success": true,
"video_id": "NZLAdOL9fP8",
"language": "English (auto-generated)",
"text": "Full transcript as one string...",
"segments": [
{ "text": "This week we launched Hyper MCP.", "start": 0.0, "duration": 3.2 },
{ "text": "It brings Hyper's built-in tools...", "start": 3.2, "duration": 4.1 }
],
"total_duration": 342.0
}
Use text for most tasks. Use segments when you need timestamps (e.g. chapters, clip references, karaoke captions).
Using youtube_videos_read for AI-powered extraction
youtube_videos_read(
url="https://www.youtube.com/watch?v=NZLAdOL9fP8",
instruction="Summarize the key points. Then list the main features demonstrated, with timestamps."
)
Good instruction examples:
"Extract every claim made about pricing or cost."
"List the action items mentioned, in order."
"Translate this to Spanish."
"What tools or products does the speaker mention by name?"
"Identify the main sections of this video and give me a timestamp for each."
What to do with the transcript
Once you have the text, ask the user what they need — or infer it from context:
| What the user wants | What to produce |
|---|
| Blog post | Restructure the transcript into intro → sections → CTA. Clean up filler words. Add subheadings. |
| LinkedIn / Twitter post | Extract the 1–2 sharpest insights. Rewrite in first person if it's the user's own video. |
| Summary | 3–5 bullet points of key takeaways. |
| Show notes / description | Title, 2-sentence summary, timestamped chapters, links mentioned. |
| Quote extraction | Pull verbatim quotes with start timestamps from the segments array. |
| Repurpose for email | Rewrite as a narrative email — opening hook, key insight, CTA. |
| Research / competitive analysis | Summarize what the speaker claims, what products they recommend, and what pain points they describe. |
Thumbnails and SEO packaging
For making or refreshing thumbnails, cloning the style of top-ranking thumbnails, adding the user's face, and generating SEO titles/descriptions, read references/thumbnails.md. Every thumbnail workflow is a sandbox script under scripts/ (generate_thumbnail.py, research_top_thumbnails.py, clone_top_thumbnail_style.py, analyze_thumbnail_concepts.py, generate_seo_titles.py, generate_seo_description.py) — the reference doc is the routing table and the rules for using them.
Example outputs
Input: "Get the transcript of https://www.youtube.com/watch?v=NZLAdOL9fP8 and write a LinkedIn post from it"
Flow:
- Call
youtube_video_transcripts_fetch(video_id_or_url="https://www.youtube.com/watch?v=NZLAdOL9fP8")
- Read the returned
text
- Identify the 1–2 sharpest moments — what's surprising, useful, or quotable
- Draft a LinkedIn post in the speaker's voice (first person) with a hook and a clear point
Input: "Summarize this video for me: [URL]"
Flow:
- Call
youtube_video_transcripts_fetch(video_id_or_url="[URL]")
- Return 4–6 bullet points of key takeaways, without padding or filler
Input: "Make me a thumbnail like the top videos for 'AI agents'"
Flow:
- Read
references/thumbnails.md
- Run
scripts/clone_top_thumbnail_style.py with query="AI agents" and the user's topic
- Show the top thumbnails, let the user pick a rank, re-run with
chosen_rank to generate
Related skills
| When to hand off | Skill |
|---|
| Mining comments from YouTube videos for customer research | customer-research |
| Finding top YouTube videos by topic | Use youtube_videos_search_top directly |
| Generating video content | video-generation |